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Biol 1401 Quiz 5 Answers

Biol 1401 Quiz 5 Answers - (b the soil has little oxygen...

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Biol 1401, 001 Quiz #5, February 26, 2010 Answers 1. What process besides the chemical weathering of rock minerals is responsible for releasing inorganic nutrients into the soil for plants? (2 pts) The decomposition of dead plant and animal material. 2. Cell membrane components of the an epidermal or cortex cell that act as one-way gates for ions into the cell are (a) proteins (b) lipid molecules (c) carbohydrates. (2 pts) 3. The main reason why root cells cannot absorb most inorganic nutrients after a field is flooded for several days is (a) the water has leached (washed out) all of the nutrients
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Unformatted text preview: (b) the soil has little oxygen for root cell respiration (c) the soil has too much water (d) the root cells have no carbohydrate. (2 pts) 4. Most of the carbohydrate in phloem cells of plants studied is sucrose . (1 pt) 5. Any substance that absorbs light energy is called a pigment . (1 pt) 6. In leaves, oxygen is produced by (a) respiration (b) PSII extracting electrons from water (c) PSI removing electrons from plastocyanin (PC) (d) removing electrons from a carotenoid pigment in PSII and PSI. (2 pts)...
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